1 /* $NetBSD: t_ceil.c,v 1.3 2011/03/25 10:42:38 jruoho Exp $ */ 2 3 /*- 4 * Copyright (c) 2011 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jukka Ruohonen. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 #include <sys/cdefs.h> 32 __RCSID("$NetBSD: t_ceil.c,v 1.3 2011/03/25 10:42:38 jruoho Exp $"); 33 34 #include <math.h> 35 #include <limits.h> 36 37 #include <atf-c.h> 38 39 ATF_TC(ceil); 40 ATF_TC_HEAD(ceil, tc) 41 { 42 atf_tc_set_md_var(tc, "descr", "A basic test of ceil(3)"); 43 } 44 45 ATF_TC_BODY(ceil, tc) 46 { 47 const int n = 10240; 48 double x, y; 49 int i; 50 51 for (i = 0; i < n; i++) { 52 53 x = i + 0.999999999; 54 y = i + 0.000000001; 55 56 ATF_REQUIRE(fabs(ceil(x) - (double)(i + 1)) < 1.0e-40); 57 ATF_REQUIRE(fabs(ceil(x) - (double)(i + 1)) < 1.0e-40); 58 } 59 } 60 61 ATF_TP_ADD_TCS(tp) 62 { 63 ATF_TP_ADD_TC(tp, ceil); 64 65 return atf_no_error(); 66 } 67